1120805

Information

• Patent Grant
• 1120805

• References
• Source

• Patent Number

  1,120,805

• Date Filed

  Not available

• Date Issued

  Tuesday, December 15, 1914
  110 years ago

• CPC

  • B61L1/187 - Use of alternating current
  • Y10S200/35 - Weight operated tread/treadless switch

• US Classifications

  • 246 - Railway switches and signals
  • 200 - Electricity: circuit makers and breakers